Pallet transport device

Abstract

A pallet transport apparatus within a rack installation oriented orthogonally with a longitudinal x direction, a transverse z direction and a vertical y direction has a travel route in the x direction and in the z direction. In the apparatus, an x traveling mechanism / x wheel units and a z traveling mechanism / z wheel units are designed so as to be vertically moveable in the y direction mechanically independently of one another. The apparatus has an x lifting device for lifting the x traveling mechanism or of the x wheel units in the y direction, a z lifting device for lifting the z traveling mechanism or of the z wheel units, and a y lifting device for moving the pallet pickup unit. The x / z lifting devices can be activated in the y direction independently of one another and independently of the y lifting device.

Description

[0001]This application claims the benefit of German Patent Application No. 10 2015 001 410.2, filed on Feb. 6, 2015, which is incorporated by reference in its entirety herein.FIELD OF THE INVENTION[0002]The present invention relates to a pallet transport apparatus for transporting pallets within a rack installation, which is oriented orthogonally with a longitudinal direction, a transverse direction and a vertical direction, along a travel route with longitudinal transport routes in the x direction and transverse transport routes in the z direction, comprising a chassis with a pallet pickup unit, an x traveling mechanism for moving in the longitudinal direction with drivable left x wheel units and right x wheel units which are arranged laterally on the left and right spaced apart in the x direction, a z traveling mechanism for moving in the transverse direction with drivable, spaced-apart, left z wheel units and right z wheel units which are arranged laterally on the left and right,...

AI Technical Summary

Benefits of technology

[0012]The present invention is based on the object or the technical problem of specifying a pallet transport apparatus of the type mentioned at the beginning which can be operated energy-efficiently, can be produced economically, permits a change of direction of the travel direction from the x into the z direction with little structural outlay, ensures permanently reliable operation and ensures a positionally precise movement of the pallet transport apparatus in the x and z direction within a rack system, has a compact structure and, all in all, permits an automatic and efficient storage of a unit load within a rack installation.

Problems solved by technology

Storage systems of this type are not optimal with regard to the economic use thereof.

This requires a relatively high energy expenditure since, for the change of direction, the weight of the pallet pickup unit, and therefore also the pallet mounted on the pallet pickup unit, has to be raised or lowered.

A complete, variable movement on the plane in the x and z direction is not possible.

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